package com.jason.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    /**
     * 正常访问，肯定Ok
     * @param id
     * @return
     */
    public String paymentInfo(Integer id){
        return "线程池： "+Thread.currentThread().getName()+"paymentInfo";
    }

    @HystrixCommand(fallbackMethod = "TimeOutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String TimeOut(Integer id){
        int timeNum=1;
        try {
            TimeUnit.SECONDS.sleep(timeNum);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池： "+Thread.currentThread().getName()+"TimeOut"+"/t"+"耗时"+timeNum+"秒";

    }
    public String TimeOutHandler(Integer id){

        return "线程池： "+
                Thread.currentThread().getName()+
                "TimeOutHandler"+"\t"+"崩溃惹";

    }


    //======================服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),  //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id)
    {
        if(id <0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID(); //等价uuid.random.tostring

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }

}
